class_docstr: Module, which does weight update during backward pass.
class_docstr_tok: ["Module",",","which","does","weight","update","during","backward","pass","."]
code: def fused_optimizer(self) -> KeyedOptimizer:
      ...
  
file_path: torchrec/torchrec/optim/fused.py
imports: import abc
  from typing import Any
  from torch import optim
  from torchrec.optim.keyed import KeyedOptimizer
label_desc: Use image node_id 1 for calling the FusedOptimizerModule obj's underlying member method code with example usage: obj.fused_optimizer() without return types